耐药相关蛋白P-gp、MRP、LRP在非小细胞肺癌组织中的表达及意义

Objective： To explore the expression and significance of the multidrug resistance-related proteins P-glycoprotein （P-gp）, multidrug resistance-related protein （MRP）, lung resistance protein （LRP）in human non-small cell lung cancer （NSCLC） tissues and paratumor tissues. Methods： Immunohistochemistry （IHC） was used to examine the expression level of proteins P-gp, MRP and LRP in 43 samples of NSCLC and 15 samples of paratumor tissues. Results： The expression rates of P-gp, MRP and LRP in 43 tumor tissues were 74.42% （32/43）, 67.44% （29/43） and 88.37% （38/43）, respectively, while in 15 paratumor tissues were 13.33% （2/15）, 20.00% （3/15） and 6.67% （1/15）, respectively. There was significant difference in the expression of proteins （P-gp, MRP and LRP） between lung cancer tissues and paratumor tissues （P 〈 0.05）. The expression of proteins P-gp, LRP in lung adenocarcinoma were higher than that in other pathological carcinomas （P 〈 0.05）. The expression of protein MRP was not related to pathological type, clinical stage and classification of histodifferentiation （P 〉 0.05）. Conclusion： Multidrug resistance is more common in NSCLC. The proteins of P-gp, MRP and LRP participated in the formation of multidrug resistance in lung cancer. Detection of multidrug resistance-related proteins in lung cancer tissues may be useful to choice drugs.

The expression and significance of the multidrug resistance-related proteins P-gp,MRP and LRP in human non-small cell lung cancer tissues

Objective: To explore the expression and significance of the multidrug resistance-related proteins P-glycoprotein (P-gp), multidrug resistance-related protein (MRP), lung resistance protein (LRP) in human non-small cell lung cancer (NSCLC) tissues and paratumor tissues. Methods: Immunohistochemistry (IHC) was used to examine the expression level of proteins P-gp, MRP and LRP in 43 samples of NSCLC and 15 samples of paratumor tissues. Results: The expression rates of P-gp, MRP and LRP in 43 tumor tissues were 74.42% (32/43), 67.44% (29/43) and 88.37% (38/43), respectively, while in 15 paratumor tissues were 13.33% (2/15), 20.00% (3/15) and 6.67% (1/15), respectively. There was significant difference in the expression of proteins (P-gp, MRP and LRP) between lung cancer tissues and paratumor tissues (P ＜ 0.05). The expression of proteins P-gp, LRP in lung adenocarcinoma were higher than that in other pathological carcinomas (P ＜ 0.05). The expression of protein MRP was not related to pathological type, clinical stage and classification of histodifferentiation (P ＞0.05). Conclusion: Multidrug resistance is more common in NSCLC. The proteins of P-gp, MRP and LRP participated in the formation of multidrug resistance in lung cancer. Detection of multidrug resistance-related proteins in lung cancer tissues may be useful to choice drugs.